Scheduling with time clock controls turns lights on and off, sets lighting levels for different times of day and changes the lighting profile for after-hours mode. More sophisticated systems also respond to signals sent from external control devices such as sensors or switches.
Paraffin wax is a solid form of paraffin, a specific type of alkane hydrocarbon. It is used in a wide range of everyday applications, most notably in common candles. This wax also sees a great deal of use in industrial applications, and it is present in everything from the Lunar Rover to drywall.araffin wax is a solid form of paraffin, a specific type of alkane hydrocarbon. It is used in a wide range of everyday applications, most notably in common candles. This wax also sees a great deal of use in industrial applications, and it is present in everything from the Lunar Rover to drywall.
As a child, you probably even used it to decorate Easter eggs. It's wax. Wax plays a starring role in beauty treatments as well -- it's a popular way to remove unwanted body hair from legs, arms, chests, eyebrows and bikini lines. But you may not know that wax has another cosmetic use: the paraffin wax bath. Paraffin wax is a mineral wax derived from petroleum [source: Cosmetics Info ].